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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISELECTRICALMOTORS, SWITCHES, RELAYSBATTERYREPAIR INSTRUCTIONSBATTERY POSITIVE CABLE REPLACEMENT (4.2L ENGINE)REMOVAL PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure
  1. Disconnect the battery negative cable. Refer to BATTERY NEGATIVE CABLE DISCONNECT/CONNECT PROCEDURE   .
  2. Disconnect the battery positive cable from the battery.
  3. Disconnect the harness from the engine harness bracket (2).
    Fig 1: Disconnecting Harness From Engine Harness Bracket
    G02129915Courtesy of GENERAL MOTORS CORP.
  4. Disconnect the positive cable lead from the starter (1).
    Fig 2: Disconnecting Positive Cable Lead From Starter
    G02129916Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the positive cable lead from the junction block (1).
    Fig 3: Disconnecting Positive Cable Lead From Junction Block
    G02129917Courtesy of GENERAL MOTORS CORP.
  6. Disconnect the positive cable lead from the generator (1).
    Fig 4: Disconnecting Positive Cable Lead From Generator
    G02129918Courtesy of GENERAL MOTORS CORP.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.